Integrated device for degrading PFAS wastewater

Abstract

The utility model relates to the technical field of wastewater treatment, and particularly discloses an integrated device for degrading PFAS wastewater, which comprises a treatment box body, a primary treatment pond, a secondary treatment pond and a post-treatment pond are arranged in the treatment box body, a pretreatment box is fixedly connected above the treatment box body, a primary filter component is arranged in the pretreatment box, and a secondary filter component is arranged in the primary filter component. The primary filtering assembly comprises a partition plate fixedly connected to the interior of the treatment box body, the left part of the treatment box body and the interior of the partition plate are jointly and rotationally connected with a filter cartridge, and a driving assembly for driving the filter cartridge to rotate is arranged outside the filter cartridge. When the filter cartridge rotates, the connecting plate and the scraping plate are static, so that the filter cartridge moves relative to the connecting plate and the scraping plate, the scraping plate scrapes the filter holes of the filter cartridge, the possibility that the filter holes are blocked is reduced, and the filtering efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, and in particular to an integrated device for degrading PFAS wastewater. Background Technology

[0002] PFAS wastewater discharge contains a large amount of silt and other large particulate impurities. Therefore, during the treatment and degradation of PFAS wastewater, it is necessary to perform preliminary treatment on the large particulate impurities and silt contained in the wastewater.

[0003] In traditional technical solutions, filtering large particulate impurities in wastewater often involves using filter screens. Wastewater passes through the filter screen while large particulate impurities remain on it. However, the wastewater always falls on a localized area of ​​the filter screen, which can easily cause localized filtration pressure to be high. This makes the filter screen prone to clogging by impurities, thus affecting filtration efficiency. Utility Model Content

[0004] The purpose of this invention is to provide an integrated device for degrading PFAS wastewater, which allows wastewater to fall into different positions inside the filter cylinder, reducing the filtration pressure of local filter holes. When the filter cylinder rotates, the connecting plate and scraper remain stationary, allowing the filter cylinder, connecting plate, and scraper to move relative to each other. The scraper scrapes the filter holes of the filter cylinder, reducing the possibility of filter hole blockage and thus improving filtration efficiency, thereby solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an integrated device for degrading PFAS wastewater, comprising a treatment tank, the interior of which includes a primary treatment tank, a secondary treatment tank, and a post-treatment tank. A pretreatment tank is fixedly connected to the top of the treatment tank, and a primary filter assembly is provided inside the pretreatment tank. The primary filter assembly includes a partition fixedly connected to the interior of the treatment tank. A filter cylinder is rotatably connected to the left side of the treatment tank and the interior of the partition. A drive assembly for driving the filter cylinder to rotate is provided outside the filter cylinder. An inlet pipe is provided inside the filter cylinder. The primary filter assembly also includes a connecting plate fixedly connected to the outer wall of the inlet pipe and located inside the filter cylinder. A scraper is fixedly connected to the side of the connecting plate away from the inlet pipe. A leakage assembly is provided at the bottom of the inlet pipe, located to the left of the connecting plate.

[0006] Preferably, the drive assembly includes a motor fixedly connected to the top left side of the partition, the output shaft of the motor being fixedly connected to a gear through the partition, and the drive assembly further includes a gear ring fixedly connected to the outer wall of the filter cartridge located on the right side of the partition, the gear ring meshing with the gear.

[0007] Preferably, the side of the scraper away from the connecting plate is in contact with the inner side of the filter cylinder, and the inner diameter of the left side of the filter cylinder is smaller than the inner diameter of the right side of the filter cylinder.

[0008] Preferably, the bottom right side of the pretreatment box is provided with a discharge port for slag removal.

[0009] Preferably, the leakage assembly includes a discharge pipe fixedly inserted into the bottom of the inlet pipe, the discharge pipe being located on the left side inside the filter cartridge.

[0010] Preferably, a bend is fixedly connected to the bottom of the outer wall of the discharge pipe, the top of the bend is slidably connected to the inlet pipe, a spring is fixedly connected between the top right side of the bend and the inlet pipe, and the leakage assembly also includes an inclined block in a ring array fixedly connected to the left side of the inner side of the filter cartridge.

[0011] Preferably, the middle section of the discharge pipe has a corrugated hose.

[0012] Preferably, the right side of the tilting block is tilted, and the left side of the bending frame is rotatably connected to a ball.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. Through the combined action of the pre-filtration component and the drive component, the wastewater can fall into different positions inside the filter cartridge, reducing the filtration pressure of the local filter holes of the filter cartridge. When the filter cartridge rotates, the connecting plate and the scraper are stationary, so that the filter cartridge and the connecting plate and scraper move relative to each other. The scraper scrapes the filter holes of the filter cartridge, reducing the possibility of filter hole blockage, thereby improving filtration efficiency.

[0015] 2. By utilizing the leakage component, the area of ​​wastewater falling inside the filter cartridge can be further increased, thereby further reducing the filtration pressure of the local filtration holes in the filter cartridge and further improving the filtration efficiency. Attached Figure Description

[0016] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is an overall structural view of the present invention;

[0018] Figure 2 This is a schematic diagram of a half-section of the present invention;

[0019] Figure 3 This is a half-sectional structural diagram of the pretreatment box of this utility model;

[0020] Figure 4 This is a half-sectional structural diagram of the filter cartridge of this utility model.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. Treatment tank; 101. Primary treatment tank; 102. Secondary treatment tank; 103. Post-treatment tank; 2. Pre-treatment tank; 3. Primary filter assembly; 31. Baffle plate; 32. Filter cartridge; 33. Connecting plate; 34. Scraper; 4. Drive assembly; 41. Motor; 42. Gear; 43. Gear ring; 5. Inlet pipe; 6. Leakage assembly; 61. Discharge pipe; 62. Bend; 63. Spring; 64. Inclined block; 65. Ball bearing; 7. Discharge port. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figures 1 to 4This utility model provides a technical solution: an integrated device for degrading PFAS wastewater, comprising a treatment tank 1. The treatment tank 1 includes a primary treatment tank 101, a secondary treatment tank 102, and a post-treatment tank 103. A pretreatment tank 2 is fixedly connected to the top of the treatment tank 1. A primary filter assembly 3 is installed inside the pretreatment tank 2. The primary filter assembly 3 includes a partition 31 fixedly connected inside the treatment tank 1. A filter cylinder 32 is rotatably connected to the left side of the treatment tank 1 and the interior of the partition 31. Filter holes are opened on the surface of the filter cylinder 32. A drive assembly 4 for driving the filter cylinder 32 to rotate is installed outside the filter cylinder 32. An inlet pipe 5 is installed inside the filter cylinder 32. The left side of the inlet pipe 5 extends out of the pretreatment tank 2 and is fixed to a fixed wall or external support. The primary filter assembly 3 also includes a connecting plate 33 fixedly connected to the outer wall of the inlet pipe 5 and located inside the filter cylinder 32. A scraper 34 is fixedly connected to the side of the connecting plate 33 away from the inlet pipe 5. A leakage assembly 6 is provided at the bottom of the inlet pipe 5 on the left side of the connecting plate 33. The drive assembly 4 includes a motor 41 fixedly connected to the top left side of the partition 31. A gear 42 is fixedly connected to the output shaft of the motor 41 through the partition 31. The drive assembly 4 also includes a gear ring 43 fixedly connected to the outer wall of the filter cylinder 32 on the right side of the partition 31. The gear ring 43 meshes with the gear 42. The side of the scraper 34 away from the connecting plate 33 is in contact with the inner side of the filter cylinder 32. The inner diameter of the left side of the filter cylinder 32 is smaller than the inner diameter of the right side of the filter cylinder 32. A discharge port 7 for slag discharge is provided at the bottom right side of the pretreatment box 2.

[0025] By adopting the above technical solution, PFAS wastewater enters the pretreatment tank 2 through the inlet pipe 5 and flows out through the leakage component 6. After being filtered by the filter cartridge 32, it enters the treatment tank 1 for treatment and degradation of the wastewater.

[0026] The primary treatment tank 101, secondary treatment tank 102, and post-treatment tank 103 are arranged sequentially from left to right. Activated carbon is installed in the primary treatment tank 101. Utilizing the porosity and large specific surface area of ​​activated carbon, PFAS molecules are adsorbed onto the surface and pores of the activated carbon as wastewater passes through the filter bed. In the secondary treatment tank 102, microbial communities capable of degrading PFAS are cultivated and domesticated for application in biological treatment systems, such as activated sludge processes and biofilm processes. However, the technology for biological treatment of PFAS is still in the research and development stage, and its treatment efficiency and stability need further improvement. The post-treatment tank 103 performs sedimentation and separation. The wastewater after the above treatment may contain some residual adsorbent materials, catalysts, precipitates, etc., which need to be removed through sedimentation and separation to make the effluent clearer and more transparent. Water pipes can be connected between the primary treatment tank 101, secondary treatment tank 102, and post-treatment tank 103, and water pumps are installed in the water pipes.

[0027] During initial filtration, wastewater flowing from the leakage component 6 falls into the interior of the filter cylinder 32 and is filtered through the filter holes opened in the filter cylinder 32. Large particles of impurities remain inside the filter cylinder 32. Simultaneously, the output shaft of the motor 41 rotates, causing the gear 42 to rotate. Under the action of the gear ring 43 meshing with the gear 42, the gear ring 43 drives the filter cylinder 32 to rotate. As the filter cylinder 32 rotates, the wastewater can fall into different positions inside the filter cylinder 32, reducing the filtration pressure of the filter holes in some areas of the filter cylinder 32. While the filter cylinder 32 rotates, the connecting plate 33 and the scraper 34 remain stationary, allowing the filter cylinder 32 to move relative to the connecting plate 33 and the scraper 34. The scraper 34 scrapes the filter holes of the filter cylinder 32, reducing the possibility of filter hole blockage and thus improving filtration efficiency.

[0028] It should be noted that the inner diameter of the left side of the filter cylinder 32 is smaller than that of the right side, which causes the filter cylinder 32 to tilt. When the scraper 34 scrapes the filter holes of the filter cylinder 32, the impurities in the filter cylinder 32 can gradually enter the right side of the partition 31 and can be periodically removed from the outlet 7.

[0029] Specifically, such as Figures 1 to 4As shown, the leakage assembly 6 includes a discharge pipe 61 fixedly inserted into the bottom of the inlet pipe 5. The discharge pipe 61 is located on the left side of the inner side of the filter cylinder 32. A bend 62 is fixedly connected to the bottom of the outer wall of the discharge pipe 61. The top of the bend 62 is slidably connected to the inlet pipe 5. A spring 63 is fixedly connected between the top right side of the bend 62 and the inlet pipe 5. The leakage assembly 6 also includes an inclined block 64 fixedly connected in a ring array to the left side of the inner side of the filter cylinder 32. The middle part of the discharge pipe 61 has a corrugated hose, which allows the bottom of the discharge pipe 61 to move. The right side of the inclined block 64 is inclined. A ball 65 is rotatably connected to the left side of the bend 62. The design of the ball 65 helps to reduce friction during movement.

[0030] By adopting the above technical solution, the sewage entering the inside of the inlet pipe 5 enters the left side of the inside of the filter cylinder 32 through the outlet pipe 61. As the filter cylinder 32 rotates, the tilting block 64 rotates accordingly. When the tilting block 64 rotates and approaches the left side of the bending frame 62 and squeezes the ball 65, the bending frame 62 moves to the right, thereby causing the bottom of the outlet pipe 61 to move to the right. As the filter cylinder 32 continues to rotate, the tilting block 64 moves away from the left side of the bending frame 62. At this time, under the elastic force of the spring 63, the bending frame 62 and the bottom of the outlet pipe 61 move to the left and reset. This can further increase the area of ​​sewage falling inside the filter cylinder 32, thereby further reducing the filtration pressure of the local filtration holes of the filter cylinder 32 and further improving the filtration efficiency.

[0031] Working principle: PFAS wastewater enters the pretreatment tank 2 through the inlet pipe 5 and flows out through the leakage component 6. After being filtered by the filter cartridge 32, it enters the treatment tank 1 for further treatment. During the initial filtration, the wastewater flowing out of the leakage component 6 falls into the filter cartridge 32 and is filtered through the filter holes. Large particles remain inside the filter cartridge 32. Simultaneously, the output shaft of the motor 41 rotates, causing the gear 42 to rotate. Under the action of the gear ring 43 meshing with the gear 42, the gear ring 43 carries the filter cartridge. The filter cylinder 32 rotates, allowing wastewater to fall into different positions inside the filter cylinder 32, reducing the filtration pressure of local filtration holes in the filter cylinder 32. While the filter cylinder 32 rotates, the connecting plate 33 and the scraper 34 remain stationary, allowing relative movement between the filter cylinder 32, the connecting plate 33, and the scraper 34. The scraper 34 scrapes the filtration holes of the filter cylinder 32, allowing impurities inside the filter cylinder 32 to gradually enter the right side of the baffle 31, and periodically remove the impurities from the discharge port 7.

[0032] Wastewater entering through the inlet pipe 5 enters the left side of the filter cylinder 32 through the outlet pipe 61. As the filter cylinder 32 rotates, the tilting block 64 rotates accordingly. When the tilting block 64 rotates and approaches the left side of the bending frame 62 and squeezes the ball 65, the bending frame 62 moves to the right, causing the bottom of the outlet pipe 61 to move to the right. As the filter cylinder 32 continues to rotate, the tilting block 64 moves away from the left side of the bending frame 62. At this time, under the elastic force of the spring 63, the bending frame 62 and the bottom of the outlet pipe 61 move to the left and reset.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. An integrated device for degrading PFAS wastewater, comprising a treatment box (1), the inside of the treatment box (1) comprising a primary treatment tank (101), a secondary treatment tank (102) and a post-treatment tank (103), a pretreatment box (2) being fixedly connected above the treatment box (1), characterized in that: The inside of the pre-treatment box (2) is provided with a primary filter assembly (3); The primary filter assembly (3) comprises a partition plate (31) fixedly connected inside the treatment box body (1), the left part of the treatment box body (1) and the inside of the partition plate (31) are jointly rotatably connected with a filter cylinder (32), the outside of the filter cylinder (32) is provided with a driving assembly (4) for driving the filter cylinder (32) to rotate, the inside of the filter cylinder (32) is provided with a through pipe (5), the primary filter assembly (3) further comprises a connecting plate (33) fixedly connected to the outer wall of the through pipe (5) and located inside the filter cylinder (32), the side of the connecting plate (33) away from the through pipe (5) is fixedly connected with a scraper (34), and the bottom of the through pipe (5) is provided with a liquid leakage assembly (6) on the left part of the connecting plate (33).

2. The integrated device for degrading PFAS wastewater of claim 1, wherein: The driving assembly (4) comprises a motor (41) fixedly connected to the left top of the partition plate (31), the output shaft of the motor (41) is fixedly connected with a gear (42) penetrating through the partition plate (31), and the driving assembly (4) further comprises a gear ring (43) fixedly connected to the outer wall of the filter cylinder (32) and located to the right of the partition plate (31), and the gear ring (43) is engaged with the gear (42).

3. The integrated device for degrading PFAS wastewater of claim 1, wherein: The side of the scraper (34) away from the connecting plate (33) is attached to the inside of the filter cylinder (32), and the left inner diameter of the filter cylinder (32) is smaller than the right inner diameter of the filter cylinder (32).

4. The integrated device for degrading PFAS wastewater of claim 1, wherein: The right bottom of the pre-treatment box (2) is provided with a discharge port (7) for discharging slag.

5. The integrated device for degrading PFAS wastewater of claim 1, wherein: The liquid leakage assembly (6) comprises a discharge pipeline (61) fixedly inserted into the bottom of the through pipe (5), and the discharge pipeline (61) is located on the left side of the inside of the filter cylinder (32).

6. The integrated device for degrading PFAS wastewater of claim 5, wherein: The outer wall bottom of the discharge pipeline (61) is fixedly connected with a bent bracket (62), the top of the bent bracket (62) is slidably connected with the through pipe (5), the right top of the bent bracket (62) is fixedly connected with a spring (63) between the through pipe (5), and the liquid leakage assembly (6) further comprises an annular array of inclined blocks (64) fixedly connected to the left side of the inside of the filter cylinder (32).

7. The integrated device for degrading PFAS wastewater of claim 5, wherein: The middle part of the discharge pipeline (61) has a section of corrugated hose.

8. The integrated device for degrading PFAS wastewater of claim 6, wherein: The right side of the inclined block (64) is inclined, and the left side of the bent bracket (62) is rotatably connected with a ball (65). The middle part of the discharge pipeline (61) has a section of corrugated hose. The right side of the inclined block (64) is inclined, and the left side of the bent bracket (62) is rotatably connected with a ball (65).

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